What is binary encoding?

Binary encoding converts text into a sequence of 0s and 1s. Each character is represented by its ASCII or UTF-8 byte value in binary form. For example, 'A' (ASCII 65) becomes '01000001'. This is how computers store and process text internally.

Why 8 bits per character?

We use 8 bits (1 byte) per character because that's the standard byte size in modern computers. ASCII characters fit in 7 bits, but we use 8 for consistency. UTF-8 multi-byte characters use multiple 8-bit groups (2-4 bytes per character).

What's the difference between this and number base conversion?

Number base conversion (binary, hex, decimal) works with numeric values. Binary encoding converts text character-by-character to binary representation. For example, '255' in number conversion is '11111111', but in text encoding it's '00110010 00110101 00110101' (three characters).

Can I decode any binary string?

The binary string must be valid: only 0s and 1s, total length divisible by 8 (each character is 8 bits). Spaces are automatically removed. Invalid binary will show an error. The decoded result must also be valid UTF-8.

How does UTF-8 encoding work?

UTF-8 is a variable-width encoding. ASCII characters (0-127) use 1 byte. Other characters use 2-4 bytes. For example, 'A' is 1 byte (01000001), 'é' is 2 bytes, and '你' is 3 bytes. This allows representing all Unicode characters efficiently.

What can I use this for?

Binary encoding is useful for: learning how computers represent text, debugging binary protocols, understanding data encoding, working with low-level systems, and educational purposes. It's not commonly used in everyday programming but helps understand computer fundamentals.

Tools

Mode

Input (Text)

Output (Binary)

01001000 01100101 01101100 01101100 01101111

Binary Converter — Encode & Decode Text to Binary

Free binary converter to encode text to binary and decode binary to text. Support for UTF-8 encoding. Perfect for learning binary representation and data encoding. All conversion runs locally in your browser.

Features

✓Encode text to binary representation
✓Decode binary back to text
✓Support for UTF-8 encoding
✓Handle multi-byte characters
✓Instant conversion as you type
✓Copy result with one click
✓Perfect for learning binary
✓Useful for data encoding
✓No data sent to server
✓All conversion runs locally in your browser

How to Use

1Select conversion mode (encode or decode).
2Enter your text or binary in the input field.
3The result appears instantly.
4Click copy button to copy the result.
5Switch modes to convert in the opposite direction.

Frequently Asked Questions

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Free number base converter to convert numbers between binary, octal, decimal, and hexadecimal. Instant conversion with step-by-step explanation. Perfect for programmers and students. All calculations run locally in your browser.